systembc | 69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d

Analysis

max time kernel
145s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25-07-2024 03:30

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General

Target

69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe
Size

240KB
MD5

9ad0e9c3ba18150e9bb1176cd3cc5cfb
SHA1

ca69a444c9bdb2b80411cd9ba8a3be06a87053c2
SHA256

69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d
SHA512

78af683bfb37d139a1cb3e3050b1a7075443197fec209d376aafdaa0694590de1a9103dd82725649dd4b35d7485e5b7a92f74d59a531ebe06fef513e15f3650b
SSDEEP

1536:YzlKjIgWITA+dAGkDEQqrj0OzgFx3wyU0SyvmQm3ZH459VSypXoDzjD7GCq2iW7z:OlKjIbAUFzU0Scm13259VSypXAv/GCH

Score

10^/10

systembc aspackv2 discovery trojan

Malware Config

Extracted

Family

systembc

31.44.185.6:4001

31.44.185.11:4001

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x0009000000023459-3.dat	aspack_v212_v242

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	CaEsb.exe

Executes dropped EXE 3 IoCs

pid	Process
3348	CaEsb.exe
316	audijx.exe
3624	CaEsb.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\Wordconv.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler.exe	CaEsb.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.106\notification_helper.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmid.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe	CaEsb.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\SoundRec.exe	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateComRegisterShell64.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\keytool.exe	CaEsb.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\WindowsCamera.exe	CaEsb.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\Microsoft.Notes.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ktab.exe	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\IEContentService.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateOnDemand.exe	CaEsb.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome_proxy.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\servertool.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmiregistry.exe	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\wow_helper.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\schemagen.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\policytool.exe	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe	CaEsb.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\View3D.ResourceResolver.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jps.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\pack200.exe	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PPTICO.EXE	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe	CaEsb.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	CaEsb.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	CaEsb.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.106\chrome_pwa_launcher.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javacpl.exe	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Integrator.exe	CaEsb.exe
File opened for modification	C:\Program Files\Mozilla Firefox\updater.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javac.exe	CaEsb.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBackgroundHost.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe	CaEsb.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\unpack200.exe	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WORDICON.EXE	CaEsb.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\MixedRealityPortal.exe	CaEsb.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\PilotshubApp.exe	CaEsb.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\createdump.exe	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ONENOTEM.EXE	CaEsb.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxAccounts.exe	CaEsb.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\XboxIdp.exe	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE	CaEsb.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE	CaEsb.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE	CaEsb.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\XboxApp.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jcmd.exe	CaEsb.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\servertool.exe	CaEsb.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\audijx.job	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe
File opened for modification	C:\Windows\Tasks\audijx.job	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3376	2708	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CaEsb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	audijx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CaEsb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	CaEsb.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	CaEsb.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	CaEsb.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	CaEsb.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	CaEsb.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2708	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe
2708	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 3348	2708	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe	83
PID 2708 wrote to memory of 3348	2708	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe	83
PID 2708 wrote to memory of 3348	2708	69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe	83
PID 3348 wrote to memory of 3856	3348	CaEsb.exe	84
PID 3348 wrote to memory of 3856	3348	CaEsb.exe	84
PID 3348 wrote to memory of 3856	3348	CaEsb.exe	84
PID 316 wrote to memory of 3624	316	audijx.exe	97
PID 316 wrote to memory of 3624	316	audijx.exe	97
PID 316 wrote to memory of 3624	316	audijx.exe	97
PID 3624 wrote to memory of 1732	3624	CaEsb.exe	98
PID 3624 wrote to memory of 1732	3624	CaEsb.exe	98
PID 3624 wrote to memory of 1732	3624	CaEsb.exe	98

C:\Users\Admin\AppData\Local\Temp\69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe
"C:\Users\Admin\AppData\Local\Temp\69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Users\Admin\AppData\Local\Temp\CaEsb.exe
  C:\Users\Admin\AppData\Local\Temp\CaEsb.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3348
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\315e4752.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 932
  2⤵
  - Program crash
  PID:3376

C:\ProgramData\utsxqpo\audijx.exe
C:\ProgramData\utsxqpo\audijx.exe start
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:316
- C:\Windows\TEMP\CaEsb.exe
  C:\Windows\TEMP\CaEsb.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious use of WriteProcessMemory
  PID:3624
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Windows\TEMP\77b7280b.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2708 -ip 2708
1⤵
PID:3856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\utsxqpo\audijx.exe

Filesize
240KB

MD5
9ad0e9c3ba18150e9bb1176cd3cc5cfb

SHA1
ca69a444c9bdb2b80411cd9ba8a3be06a87053c2

SHA256
69b22d283fd4a6ce1c9f69f610449b016fdbb7ac1f8c23e199b3c72d7f75c61d

SHA512
78af683bfb37d139a1cb3e3050b1a7075443197fec209d376aafdaa0694590de1a9103dd82725649dd4b35d7485e5b7a92f74d59a531ebe06fef513e15f3650b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\3WWFCFW4\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\315e4752.bat

Filesize
185B

MD5
823b779b222b3a760c50219149b78be5

SHA1
efa1621880e3aee7affbce65c55755f3128fa667

SHA256
758133e17947b6448777492dcca78cbdd35129f9799da508c120195e852b8d30

SHA512
83b3a524ba563ec4d9a0239d99df80606c6789136c4bd176a9ecbac1d325d0ce24d7a2603e5ff9e4913ad4476a7c8870e4912612750923537b10420a5aa0a2e5

Download Submit
C:\Users\Admin\AppData\Local\Temp\48267541.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\CaEsb.exe

Filesize
15KB

MD5
f7d21de5c4e81341eccd280c11ddcc9a

SHA1
d4e9ef10d7685d491583c6fa93ae5d9105d815bd

SHA256
4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

SHA512
e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

Download Submit
C:\Windows\TEMP\77b7280b.bat

Filesize
131B

MD5
7be92de8c9e5fb9b68adb2373519c52a

SHA1
f8dcf918b6890db8cedd51c6a492f9a30b7a39dc

SHA256
71a83fc939362b157a89caaf18c91638483a8c4bdbde25504f975e0e05bf3da6

SHA512
63d45b1ac2c09c98648a2c2c612783d73fdaebd8fc57cee99579ed9fa219621987fc5da3f00b50333e0d39f61dde732200cd1cb91ade81b855d3f1ae8a167b4e

Download Submit
memory/316-70-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2708-50-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2708-0-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2708-49-0x0000000000550000-0x0000000000559000-memory.dmp

Filesize
36KB

Download
memory/2708-52-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2708-48-0x0000000000750000-0x0000000000850000-memory.dmp

Filesize
1024KB

Download
memory/2708-68-0x0000000000750000-0x0000000000850000-memory.dmp

Filesize
1024KB

Download
memory/3348-46-0x00000000007B0000-0x00000000007B9000-memory.dmp

Filesize
36KB

Download
memory/3348-4-0x00000000007B0000-0x00000000007B9000-memory.dmp

Filesize
36KB

Download
memory/3624-63-0x0000000000E30000-0x0000000000E39000-memory.dmp

Filesize
36KB

Download